<?php 
/**
 * guest.php
 *
 * Guest customer management
 *
 * @author     Makai Lajos
 * @copyright  2015
 * @license    License.txt
 * @version    2.0
 * @link       http://opencart-api.com/product/opencart-restful-api-pro-v2-0/
 * @see        http://newapi2.opencart-api.com/demo/
 */
require_once(DIR_SYSTEM . 'engine/restcontroller.php');

class ControllerRestGuest extends RestController {
  	
	/*
	* Get guest user from session
	*/
	public function getGuest() {

		$json = array('success' => true); 
		$data['customer_groups'] = array();

		if (is_array($this->config->get('config_customer_group_display'))) {
			$this->load->model('account/customer_group');

			$customer_groups = $this->model_account_customer_group->getCustomerGroups();

			foreach ($customer_groups as $customer_group) {
				if (in_array($customer_group['customer_group_id'], $this->config->get('config_customer_group_display'))) {
					$data['customer_groups'][] = $customer_group;
				}
			}
		}

		if (isset($this->session->data['guest']['customer_group_id'])) {
			$data['customer_group_id'] = $this->session->data['guest']['customer_group_id'];
		} else {
			$data['customer_group_id'] = $this->config->get('config_customer_group_id');
		}

		if (isset($this->session->data['guest']['firstname'])) {
			$data['firstname'] = $this->session->data['guest']['firstname'];
		} else {
			$data['firstname'] = '';
		}

		if (isset($this->session->data['guest']['lastname'])) {
			$data['lastname'] = $this->session->data['guest']['lastname'];
		} else {
			$data['lastname'] = '';
		}

		if (isset($this->session->data['guest']['email'])) {
			$data['email'] = $this->session->data['guest']['email'];
		} else {
			$data['email'] = '';
		}

		if (isset($this->session->data['guest']['telephone'])) {
			$data['telephone'] = $this->session->data['guest']['telephone'];
		} else {
			$data['telephone'] = '';
		}

		if (isset($this->session->data['guest']['fax'])) {
			$data['fax'] = $this->session->data['guest']['fax'];
		} else {
			$data['fax'] = '';
		}

		if (isset($this->session->data['payment_address']['company'])) {
			$data['company'] = $this->session->data['payment_address']['company'];
		} else {
			$data['company'] = '';
		}

		if (isset($this->session->data['payment_address']['address_1'])) {
			$data['address_1'] = $this->session->data['payment_address']['address_1'];
		} else {
			$data['address_1'] = '';
		}

		if (isset($this->session->data['payment_address']['address_2'])) {
			$data['address_2'] = $this->session->data['payment_address']['address_2'];
		} else {
			$data['address_2'] = '';
		}

		if (isset($this->session->data['payment_address']['postcode'])) {
			$data['postcode'] = $this->session->data['payment_address']['postcode'];
		} elseif (isset($this->session->data['shipping_address']['postcode'])) {
			$data['postcode'] = $this->session->data['shipping_address']['postcode'];
		} else {
			$data['postcode'] = '';
		}

		if (isset($this->session->data['payment_address']['city'])) {
			$data['city'] = $this->session->data['payment_address']['city'];
		} else {
			$data['city'] = '';
		}

		if (isset($this->session->data['payment_address']['country_id'])) {
			$data['country_id'] = $this->session->data['payment_address']['country_id'];
		} elseif (isset($this->session->data['shipping_address']['country_id'])) {
			$data['country_id'] = $this->session->data['shipping_address']['country_id'];
		} else {
			$data['country_id'] = $this->config->get('config_country_id');
		}

		if (isset($this->session->data['payment_address']['zone_id'])) {
			$data['zone_id'] = $this->session->data['payment_address']['zone_id'];
		} elseif (isset($this->session->data['shipping_address']['zone_id'])) {
			$data['zone_id'] = $this->session->data['shipping_address']['zone_id'];
		} else {
			$data['zone_id'] = '';
		}

		$this->load->model('localisation/country');

		$data['countries'] = $this->model_localisation_country->getCountries();

		// Custom Fields
		$this->load->model('account/custom_field');

		$data['custom_fields'] = $this->model_account_custom_field->getCustomFields();

		if (isset($this->session->data['guest']['custom_field'])) {
			$data['guest_custom_field'] = $this->session->data['guest']['custom_field'] + $this->session->data['payment_address']['custom_field'];
		} else {
			$data['guest_custom_field'] = array();
		}

		$data['shipping_required'] = $this->cart->hasShipping();

		if (isset($this->session->data['guest']['shipping_address'])) {
			$data['shipping_address'] = $this->session->data['guest']['shipping_address'];
		} else {
			$data['shipping_address'] = true;
		}

		
		$json["data"] = $data;

		if ($this->debugIt) {
			echo '<pre>';
			print_r($json);
			echo '</pre>';
		} else {
			$this->response->setOutput(json_encode($json));
		}
			
  	}
	
	/* 
	* Save guest data to session
	*/
	public function addGuest($data) {
    	
		$this->language->load('checkout/checkout');

		$json = array('success' => true);
		
		// Validate if customer is logged in.
		if ($this->customer->isLogged()) {
			$json['error'] = "Customer is logged in.";
			$json['success'] = false;
		} 			
		
		// Validate cart has products and has stock.
		if ((!$this->cart->hasProducts() && empty($this->session->data['vouchers'])) || (!$this->cart->hasStock() && !$this->config->get('config_stock_checkout'))) {

			$json['error'] = "Validate cart has products and has stock failed.";	
			$json['success'] = false;
		}
		
		// Check if guest checkout is avaliable.			
		if (!$this->config->get('config_checkout_guest') || $this->config->get('config_customer_price') || $this->cart->hasDownload()) {
			$json['error']= "Guest checkout is not avaliable";
			$json['success'] = false;
		} 
					
		if ($json['success']) {
			if ((utf8_strlen(trim($data['firstname'])) < 1) || (utf8_strlen(trim($data['firstname'])) > 32)) {
				$json['error']['firstname'] = $this->language->get('error_firstname');
			}

			if ((utf8_strlen(trim($data['lastname'])) < 1) || (utf8_strlen(trim($data['lastname'])) > 32)) {
				$json['error']['lastname'] = $this->language->get('error_lastname');
			}

			if ((utf8_strlen($data['email']) > 96) || !preg_match('/^[^\@]+@.*\.[a-z]{2,6}$/i', $data['email'])) {
				$json['error']['email'] = $this->language->get('error_email');
			}

			if ((utf8_strlen($data['telephone']) < 3) || (utf8_strlen($data['telephone']) > 32)) {
				$json['error']['telephone'] = $this->language->get('error_telephone');
			}

			if ((utf8_strlen(trim($data['address_1'])) < 3) || (utf8_strlen(trim($data['address_1'])) > 128)) {
				$json['error']['address_1'] = $this->language->get('error_address_1');
			}

			if ((utf8_strlen(trim($data['city'])) < 2) || (utf8_strlen(trim($data['city'])) > 128)) {
				$json['error']['city'] = $this->language->get('error_city');
			}

			$this->load->model('localisation/country');

			$country_info = $this->model_localisation_country->getCountry($data['country_id']);

			if ($country_info && $country_info['postcode_required'] && (utf8_strlen(trim($data['postcode'])) < 2 || utf8_strlen(trim($data['postcode'])) > 10)) {
				$json['error']['postcode'] = $this->language->get('error_postcode');
			}

			if ($data['country_id'] == '' || !is_numeric($data['country_id'])) {
				$json['error']['country'] = $this->language->get('error_country');
			}

			if (!isset($data['zone_id']) || $data['zone_id'] == '' || !is_numeric($data['zone_id'])) {
				$json['error']['zone'] = $this->language->get('error_zone');
			}

			// Customer Group
			if (isset($data['customer_group_id']) && is_array($this->config->get('config_customer_group_display')) && in_array($data['customer_group_id'], $this->config->get('config_customer_group_display'))) {
				$customer_group_id = $data['customer_group_id'];
			} else {
				$customer_group_id = $this->config->get('config_customer_group_id');
			}

			// Custom field validation
			$this->load->model('account/custom_field');

			$custom_fields = $this->model_account_custom_field->getCustomFields($customer_group_id);

			foreach ($custom_fields as $custom_field) {
				if ($custom_field['required'] && empty($data['custom_field'][$custom_field['location']][$custom_field['custom_field_id']])) {
					$json['success'] = false;
					$json['error']['custom_field' . $custom_field['custom_field_id']] = sprintf($this->language->get('error_custom_field'), $custom_field['name']);
				}
			}
		}
			
		if ($json['success']) {
			$this->session->data['account'] = 'guest';

			$this->session->data['guest']['customer_group_id'] = $customer_group_id;
			$this->session->data['guest']['firstname'] = $data['firstname'];
			$this->session->data['guest']['lastname'] = $data['lastname'];
			$this->session->data['guest']['email'] = $data['email'];
			$this->session->data['guest']['telephone'] = $data['telephone'];
			$this->session->data['guest']['fax'] = isset($data['fax']) ? $data['fax'] : '';

			if (isset($data['custom_field']['account'])) {
				$this->session->data['guest']['custom_field'] = $data['custom_field']['account'];
			} else {
				$this->session->data['guest']['custom_field'] = array();
			}

			$this->session->data['payment_address']['firstname'] = $data['firstname'];
			$this->session->data['payment_address']['lastname'] = $data['lastname'];
			$this->session->data['payment_address']['company'] = isset($data['company']) ? $data['company'] : '';
			$this->session->data['payment_address']['address_1'] = $data['address_1'];
			$this->session->data['payment_address']['address_2'] = isset($data['address_2']) ? $data['address_2'] : '';
			$this->session->data['payment_address']['postcode'] = $data['postcode'];
			$this->session->data['payment_address']['city'] = $data['city'];
			$this->session->data['payment_address']['country_id'] = $data['country_id'];
			$this->session->data['payment_address']['zone_id'] = $data['zone_id'];

			$this->load->model('localisation/country');

			$country_info = $this->model_localisation_country->getCountry($data['country_id']);

			if ($country_info) {
				$this->session->data['payment_address']['country'] = $country_info['name'];
				$this->session->data['payment_address']['iso_code_2'] = $country_info['iso_code_2'];
				$this->session->data['payment_address']['iso_code_3'] = $country_info['iso_code_3'];
				$this->session->data['payment_address']['address_format'] = $country_info['address_format'];
			} else {
				$this->session->data['payment_address']['country'] = '';
				$this->session->data['payment_address']['iso_code_2'] = '';
				$this->session->data['payment_address']['iso_code_3'] = '';
				$this->session->data['payment_address']['address_format'] = '';
			}

			if (isset($data['custom_field']['address'])) {
				$this->session->data['payment_address']['custom_field'] = $data['custom_field']['address'];
			} else {
				$this->session->data['payment_address']['custom_field'] = array();
			}

			$this->load->model('localisation/zone');

			$zone_info = $this->model_localisation_zone->getZone($data['zone_id']);

			if ($zone_info) {
				$this->session->data['payment_address']['zone'] = $zone_info['name'];
				$this->session->data['payment_address']['zone_code'] = $zone_info['code'];
			} else {
				$this->session->data['payment_address']['zone'] = '';
				$this->session->data['payment_address']['zone_code'] = '';
			}

			if (!empty($data['shipping_address'])) {
				$this->session->data['guest']['shipping_address'] = $data['shipping_address'];
			} else {
				$this->session->data['guest']['shipping_address'] = false;
			}

			// Default Payment Address
			if ($this->session->data['guest']['shipping_address']) {
				$this->session->data['shipping_address']['firstname'] = $data['firstname'];
				$this->session->data['shipping_address']['lastname'] = $data['lastname'];
				$this->session->data['shipping_address']['company'] = $data['company'];
				$this->session->data['shipping_address']['address_1'] = $data['address_1'];
				$this->session->data['shipping_address']['address_2'] = $data['address_2'];
				$this->session->data['shipping_address']['postcode'] = $data['postcode'];
				$this->session->data['shipping_address']['city'] = $data['city'];
				$this->session->data['shipping_address']['country_id'] = $data['country_id'];
				$this->session->data['shipping_address']['zone_id'] = $data['zone_id'];

				if ($country_info) {
					$this->session->data['shipping_address']['country'] = $country_info['name'];
					$this->session->data['shipping_address']['iso_code_2'] = $country_info['iso_code_2'];
					$this->session->data['shipping_address']['iso_code_3'] = $country_info['iso_code_3'];
					$this->session->data['shipping_address']['address_format'] = $country_info['address_format'];
				} else {
					$this->session->data['shipping_address']['country'] = '';
					$this->session->data['shipping_address']['iso_code_2'] = '';
					$this->session->data['shipping_address']['iso_code_3'] = '';
					$this->session->data['shipping_address']['address_format'] = '';
				}

				if ($zone_info) {
					$this->session->data['shipping_address']['zone'] = $zone_info['name'];
					$this->session->data['shipping_address']['zone_code'] = $zone_info['code'];
				} else {
					$this->session->data['shipping_address']['zone'] = '';
					$this->session->data['shipping_address']['zone_code'] = '';
				}

				if (isset($data['custom_field']['address'])) {
					$this->session->data['shipping_address']['custom_field'] = $data['custom_field']['address'];
				} else {
					$this->session->data['shipping_address']['custom_field'] = array();
				}
			}

			unset($this->session->data['shipping_method']);
			unset($this->session->data['shipping_methods']);
			unset($this->session->data['payment_method']);
			unset($this->session->data['payment_methods']);
		}
					
		if ($this->debugIt) {
				echo '<pre>';
				print_r($json);
				echo '</pre>';
		} else {
			$this->response->setOutput(json_encode($json));
		}
	}
	

	/*
	* deprecated
	* Get zone list
	*/
  	public function zone() {
		
		$this->checkPlugin();
		
		$json = array('success' => true);
		
		if ( $_SERVER['REQUEST_METHOD'] === 'GET' ){

			$this->load->model('localisation/zone');
			if (isset($this->request->get['country_id']) && ctype_digit($this->request->get['country_id'])) {			
				$results = $this->model_localisation_zone->getZonesByCountryId($this->request->get['country_id']);

				$zones = array();
		
				foreach ($results as $result) {
					$zones[] = array(
							'zone_id'	=> $result['zone_id'],
							'country_id'=> $result['country_id'],
							'name'		=> $result['name'],
							'status'	=> $result['status'],
							'code'		=> $result['code']
					);
				}

				if(count($zones) == 0){
					$json['success'] 	= false;
					$json['error'] 		= "No result";
				}else {
					$json['data'] 	= $zones;	
				}				

			}else {
				$json["error"]		= "Missing or wrong country_id parameter";
				$json["success"]	= false;
			}

		}

		if ($this->debugIt) {
				echo '<pre>';
				print_r($json);
				echo '</pre>';
		} else {
			$this->response->setOutput(json_encode($json));
		}
  	}

	/*
	* GUEST FUNCTIONS
	*/	
	public function guest() {

		$this->checkPlugin();

		if ( $_SERVER['REQUEST_METHOD'] === 'GET' ){
			//get guest
			$this->getGuest();
		}else if ( $_SERVER['REQUEST_METHOD'] === 'POST' ){
			//add guest
			$requestjson = file_get_contents('php://input');
		
			$requestjson = json_decode($requestjson, true);           

			if (!empty($requestjson)) {
				$this->addGuest($requestjson);
			}else {
				$this->response->setOutput(json_encode(array('success' => false)));
			}
		}

    }
}